Heating element



Okt. 19 1926.

W. T. CHAMBERLAIN.

HEATING ELEMENT Original Filed'May 31, 1924 2 Shfla-Shsfl 1 INVENTOR WTCharnfierlaiw.

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Patented Get. 19, 1926.

WILLIAM T. CHAMBERLAIN, OF NEW YORK, N. Y.

HEATING ELEMENT.

Original application filed May 31, 1924, Serial No. 717,077. Divided andthis application filed April 23,

This invention relates to heating elements, and this application is adivision of my original application on air preheater, filed May 31,1924, Serial No. 717,077.

An object of the invention is to provide a heating element which willquickly take up the heat units and give off the heat units and which isespecially adapted for use in connection with the preheater disclosed inmy application above referred to although it is to be distinctlyunderstood that I claim the preheater itself for any use to which it canbe put.

With these and other objects in view, the invention consists in certainnovel features of construction and combinations and arrangements ofparts which will be more fully hereinafter described and pointed out inthe claim.

In the accompanying drawings- Figure 1 is a top plan view of my improvedheating element, a portion thereof being broken away;

Figure 2 is a view in front elevation of the heating element shown inFigure 1;

Figure 3 is an enlarged fragmentary view in detail of the constructionof the heating element shown in Figures 1 and 2;

Figures 4 and 5 are detail views, illustrating a modified constructionof heating element;

Figures 6 and 7 are detail views of parts shown in Figure 3;

Figure 8 is a fragmentary view in elevation, illustrating anothermodification;

Figure 9 is a view in section on the line 9--9 of Figure 8.

Referring more 2, .3, 6 and 7:

In constructing a heating vide a central post 37 to which arms 38 and 39are connected. These arms 38 and 39 in their assemblage constitute ineffect channels in which spacers 40 are mounted. These spacers 40 mayconstitute strips, as shown in Figure 6, having notches 41 in one edgeproperly space particularly to Figures 1,

element I proto receive the wire 42 and the runs of said wire.

Instead of providing spacing strips 40 I may locate angles 43 betweenthe runs of Serial No. 25,333.

wire, as shown in Figures 4 and 5, and to spacethe wires laterally fromeach other I may provide short sections of wire 44 between the runs ofwire and also between the angular spacers 43. 'In constructing theelements a single set of spacers is assembled as the wire indicated bythe reference numeral 42 is wound thereon. In other words, the operationis to begin at the center and wind horizontally around and around,spacing the several runs as above indicated, until the winding reachesthe desired length, when a set of spacers of proper form are assembledon top of the first winding and the winding begins again, but this timein the opposite direction so that with a single length of wire anotherelement can be formed, and by providing this arrangement of spacers Iconstruct a heating element which is composed mainly of wire with thedifferent runs of wire spaced apart in both directions. Such aconstruction of heating element presents an enormous amount of radiatingsurface and also presents a construction which is not liable to beinjured or disorgz-inizo by high temperatures, which absorbs the maximumof heat, and which causes or compels the air to filter therethrough andrapidly take up the heat so that the transfer of heat is rapid and ofhigh temperature.

In Figures 8 and 9 I illustrate another modification in which I providestrips 1 between the runs of wire 42, which are curved transversely inan arc suiiicient to provide ample space between the runs of wire anzlallow a neat smooth curve instead of an angle over which they are bent.

I do not wish to be limited, of course. to the exact construction andmanner of form ing and spacing the runs of wire but I do claim broadlythe idea of heating element of this type composed of a plurality of runsof wire spaced apart both longitudinally and transversely, verticallyand horizontally, or in any two directions in which the winding andspacing takes place.

To provide a suitable mounting for the rollers 32 a base framework 45 isprovided atthe lower end of each heating element.

Various slight changes and alterations might be made in the general formof the parts described without departing from my invention, and hence Ido not limit myself to the precise details set forth but consider myselfat liberty to make such slight changes and alterations as fairly fallwithin the spirit and scope of the appended claim.

I claim:

A heating element of the character described, comprising a support, aplurality of windings of wire on said support, and spacers interposedbetween the wires of the windings both radially and longitudinally andheld in place by the windings.

WILLIAM Fr. CHAMBERLAIN.

